Smart home DIY tutorial - temperature and humidity

Guide: The previous section introduced how to build a gateway, with a gateway, we can add a variety of sensors to it. In this issue, we come to DIY "Smart Temperature", so you can view the temperature and humidity in the family in real time. This time we will use the nano development board and the dedicated expansion board as a controller, which is easy to operate. Here is our main accessories that we need to use: Other accessories include: micro USB line X1, 9V ~ 12V / 1A power adapter X1 Be Insert the NRF24L01 module to the corresponding interface on the NANO IO Shield board, and then connect the NANO to the slot of the SHIELD, the DHT11 module is connected to the electronic block interface of the A2. The circuit connection is very simple, it is necessary to pay attention to the DuPont connection A2 of DHT11, do not replace it, G V s corresponds to G + S. Eventually as shown: By this way, talk to everyone: our DHT11 sensors have two interfaces: a 3PIN DuPont interface and 4PIN Grove interface. The GROVE interface has a snap and can effectively prevent the wiring from loosen. The white interface line is a dedicated 4pin to 3PIN Grove. Select one of the interfaces when used. The hardware is tailored, and next is to install the drive and burn the firmware. Be NANO driver and library file download address: http: //pan.baidu.com/s/1NT6VYDF download is decompressed. NANO driver installation steps: a, plug in Nano with Micro USB cable connection computer b, right-click "My Computer" or "Computer" to open "management" c, enter "Device Manager", "USB Serial Port" appears under port COM D, right-click "USB Serial Port", select "Update Install Driver Software" e, click "Browse Computer Find Driver Software" f, select the folder in the NANO driver file you just decompressed. g, click OK or Next, complete the driver installation Be Next, write the firmware for the NANO (you can modify the source code at will to achieve the function you want) 1. Put the downloaded library to the Libraries folder under your Arduino IDE directory, for example my path is: D: \ Arduino-1.0.4 \ Libraries 2, open Arduino software, choose Tools->Serial Port->comX 3, Comx is the COM number of the computer device manager CP2102 4, choose Tools->board->ardeno Duemilanove W / Atmega328 5. Copy the source code inside the wenshidu file (open) to the Arduino program interface 6. Click on the first compile button on the left. If the program compiles successfully, click the second download button, start the download program. At this point, the hardware and programs of the gateway have been completed, and the power adaptation is powered, the gateway is made before the connection, as shown in the figure: Be Finally, the networked test: 1. Open the smart game controller M.Znck007.com with your mobile phone or PC page, and log in to your account. 2, click "Home Temperature" and "Air Humidity", you can see the temperature and humidity information. Be Bamboo Creative studio [Activities] Participate in the panel essay activities, win the intelligent prize!